1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x330bd8f6d900e9f768a911250fdd5e017797b0365547745f1103880e048b1f54. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fa02f583-7859-4a2a-9c5f-a4b49f3c16e8.json and https://artists.proofprofile.net/proofs/artist/fa02f583-7859-4a2a-9c5f-a4b49f3c16e8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bd25c741cf67bc657e1b5f57d2e0fe2918a153a2a74c727c2cf0d287dbae451. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGH2228021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad31f7fdea65d60898f5c9f4c5ad56b2f2b52c2e99c4e0a8eafba19807966417. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGH2228022.
Devil's Lab / Magitek Factory - Final Fantasy VI
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ab91b8b438a4f796b0b7298d6d54d9ad71b4f796970d30b2775f32d4839160e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGH2228024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd24bb5d69e79f414fa22d72f6b11e64ab1974607cf54d5e30c29179856cd3e92. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGH2228028.
The Owl House End Credit Theme (Extended)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d98467bd5ddd68f123fdb2f667b90da362b7619d394b467dfcf686311374d3a. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:20:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGH2246302.
Battle 2 (Boss Battle) [Final Fantasy IV]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3d1b2a0b7bcfde87703d7bda74781cd3c3fc8618e922e0f96471485bd1d107a. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM22221498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a41f97161d152434788097ea7107dc1ea72c8ae17e87bfe5dd25257e090bf84. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM22221504.
Cheat Codes: NES Classics and Retro Radness
Praying Hands (From "Castlevania II: Belmont's Revenge")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb57b0249fecb5c4720779c9e90ab296f14552ace73bdcb3e73e7eee17a2e22a2. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGH2354420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a14efbd3bfca0ff1ce95687cf5707cf8b3d10fd31f6f5436435f9010239943f. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGH2354421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98af66d4eeabb1b63449f581eb5b07b55402c878bfbd10d0b7b54ab8499c6f12. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGH2354423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffd728841c828b363390556ab6e141a6963d817a9fe4502a10696c60f6a948bd. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGH2354425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0427d94d77be165b6d9bd076b8b22bdbf1d14e850c87095222045c2f7d29dd38. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGH2354426.
Marble Madness: High Rollers (End Theme)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x422466681aefbb7afe9f2effcc800a5396bbed8214c7fe82d956ce915c567b6c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGH2354427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb63c7282aa532ce62f10866ac24ba63d116ba698171acc6f434f5057880a430. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGH2354428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea3bf35a53192d316eacd95dd0a361554885206bea9748bed27f2ef1738b6fb8. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGH2354429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefabb24caf2d926e7d5d2b280f60cb7430f53fea830d4cf65594ad9753823b94. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGH2354430.
Adventures of the Gummi Bears Theme Song
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaae9d54ddc8b264a15bcf037db57cabb409fdff4f34086586331113c5346fbfd. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGH2354432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65181ab1b70490c39712a92682dc4325cdba4554bf3f478133ea697fbc85c3d0. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGH2354433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c47f28fab64a716e9b0887ba93ffac890f982dd5fce26d1a6e8d05015ffbd75. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:30:42Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM22307230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x834f0e591413d078ce89a70e29428898a37a2767a3f0973d0789be9b32efebec. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USMH92392196.
Amphibia Outro (Anne's Theme) [Extended]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b3926d0fe1046add6fbf7d86fec2a8fc1092a985db5759fa3543d880659ce05. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USMH92392197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44a64a4577b9b7b2134c105e732cf22abd109dae763dbe08396fab89eb557dea. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX9P2305394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf628ddf14a07943eae84249239e3a17779315b81495da458da237bd3d565c773. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM82499386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7159a668202f3d2034613852c03d458ef31a0f1754a9ed6031f9f56c40d06677. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T10:09:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX9P2472185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x971ff2d76f7fa13bca87788da3f080590e3552d2e1f37c93560a0ad9574f2b32. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX9P2472187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53af5168fe1a47e46e09b1bb7a5fbdc018daf531dcf283da97d2709e75b899c7. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USX9P2472190.
Thou Hath Discovered Twinstrumental: Wizards and Warriors NES Tribute
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x003a0896f1c08c0c54cc9f3197a1ba3e881aa0bff3d3e1306ef3638e1c64f835. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGJ2551941.